Humans are biologically programmed for violence. Lorenz’s ethology reveals how imprinting, instincts, and group aggression shape radicalization, school shooters, and terrorists.

Austrian biologist Konrad Lorenz came up with his "kinderschema" or child scheme, which is a list of physical characteristics that define what we consider cute. He observed that cute animals share ...

Konrad Lorenz, a pioneer in ethology, observed that militant enthusiasm—the instinct to defend one’s group against outsiders—exists across species, from greylag geese to humans. He wrote ...